Last week I tried to come up with a list of tests for Protocol, and got this as a first cut:
https://gist.github.com/2770483
I took a shot at creating a test manifest for just query-specific protocol tests (no update for now, and this hasn't been committed yet). With those new tests included, this is what the coverage looks like as of last night:
http://kasei.us/temp/sparql11-status-20120528.html
The protocol tests are a work in progress; I'd welcome any input people have (especially if you've got a protocol implementation that either passes or fails any of these tests). I know the fuseki-based sparql.org endpoint passes about half of the query protocol tests, and I'll be looking into what issues (probably on my end) are causing the failures.
Beyond Protocol, we need to approve the UUID function tests, approve or reject Axel's new BIND tests, fix the new idempotent update test (basic-update/manifest#insert-05), and add tests for the recent changes to STRBEFORE/STRAFTER (I have an action on that last one).
We also need more implementations doing Service Description (this should be minimal work for endpoints to do a minimally-conformant SD) and Entailment (Chime is the only one doing this so far, and he's either not running or failing the majority of the tests).
.greg